JPH07119674B2 - Pressure vessel pressure resistance test method - Google Patents
Pressure vessel pressure resistance test methodInfo
- Publication number
- JPH07119674B2 JPH07119674B2 JP62131415A JP13141587A JPH07119674B2 JP H07119674 B2 JPH07119674 B2 JP H07119674B2 JP 62131415 A JP62131415 A JP 62131415A JP 13141587 A JP13141587 A JP 13141587A JP H07119674 B2 JPH07119674 B2 JP H07119674B2
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- Prior art keywords
- pressure
- water
- pressure vessel
- vessel
- gas
- Prior art date
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Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、圧力容器の耐圧試験方法の改良に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to an improvement in a pressure test method for a pressure vessel.
従来、鋼管などの閉鎖された容器の圧力耐圧試験方法と
して、特開昭55−163430号公報「閉鎖断面筒状材に対す
る内圧負荷方法」が提案されている。この方法は、容器
内に液体を充満し加圧源を介し高圧気体を付与し液体圧
を負荷する方法となつている。Conventionally, Japanese Patent Laid-Open No. 163430/1988 "Internal pressure loading method for tubular material with closed cross section" has been proposed as a method for testing pressure and pressure resistance of a closed container such as a steel pipe. This method is a method of filling the liquid in the container and applying a high-pressure gas through a pressure source to load the liquid pressure.
従来の圧力容器の耐圧試験方法を第３図，第４図により
説明する。第３図（イ）は耐圧試験方法実施状態説明
図、（ロ）は（イ）のＡ−Ａ矢視断面図、第４図は通常
の火力発電設備用脱気器説明図である。図において、１
は脱気器タンクの圧力容器、３は水張りポンプ、４は空
気抜弁、５は本体圧力計、８は加圧ポンプ、10は加圧ポ
ンプ出口弁、12は胴体水抜弁である。また、13は床面、
14は砂、15は鉄板、16は仮設受台、18は脱気室、19は給
水配管、20は加熱蒸気入口、21は給水連絡管、22は均圧
管、26は分散管である。A conventional pressure vessel pressure resistance test method will be described with reference to FIGS. FIG. 3 (A) is an explanatory view of a state of performing a pressure resistance test method, (B) is a sectional view taken along the line AA of (A), and FIG. In the figure, 1
Is a pressure vessel of the deaerator tank, 3 is a water filling pump, 4 is an air vent valve, 5 is a main pressure gauge, 8 is a pressure pump, 10 is a pressure pump outlet valve, and 12 is a body drain valve. 13 is the floor,
14 is sand, 15 is an iron plate, 16 is a temporary cradle, 18 is a deaeration chamber, 19 is a water supply pipe, 20 is a steam inlet, 21 is a water supply connection pipe, 22 is a pressure equalizing pipe, and 26 is a dispersion pipe.
第４図において、脱気器は、脱気室18と脱気器タンクの
圧力容器１とから構成されており、脱気室18は、給水配
管19より脱気室18に導かれた給水を加熱蒸気入口20から
の蒸気により急速な熱交換を行ない給水中の脱気を行な
う目的のために設けられている。圧力容器１は、脱気室
18で脱気された給水を貯水するもので鋼板製の円筒タン
クに形成されている。脱気室18と圧力容器１との間に
は、脱気水を流下させる給水連絡管21、及び圧力容器１
の内圧力並びに脱気室18の内圧力を平衡させる均圧管22
が設置されている。これらの脱気室18,圧力容器１は、
圧力用容器として最高使用圧力の1.5倍の水圧による耐
圧試験に耐えることが規定されている。In FIG. 4, the deaerator is composed of a deaerator 18 and the pressure vessel 1 of the deaerator tank. The deaerator 18 feeds water supplied to the deaerator 18 from a water supply pipe 19. It is provided for the purpose of performing rapid heat exchange by the steam from the heating steam inlet 20 and degassing the feed water. Pressure vessel 1 is a degassing chamber
It stores the water supply degassed in 18, and is formed in a steel plate cylindrical tank. Between the deaeration chamber 18 and the pressure vessel 1, a water supply communication pipe 21 for flowing deaerated water, and the pressure vessel 1
Equalizing pipe 22 for balancing the internal pressure of the chamber and the internal pressure of the deaeration chamber 18
Is installed. These deaeration chamber 18 and pressure vessel 1 are
It is stipulated that it can withstand a pressure test with water pressure 1.5 times the maximum operating pressure as a pressure vessel.
次に、第３図により従来の圧力容器の耐圧試験方法を説
明する。最近、プラントの大形化に伴い圧力容器１も大
容量となり、例えば発電所用の700MW（700万KW）級の脱
気タンクの圧力容器１は、内径が3.8m、全長16mの鋼板
製円筒タンクに形成されている。そのため、自重が60ト
ン、満水時に水の重量が154トン、従つて、合計214トン
となるので、この巨大な重量物を支持する対策として床
面13上に砂14を敷き詰め鉄板15を置き地盤沈下を防ぎ特
別に製作して圧力容器１の変形を防ぐ仮設受台16上に圧
力容器１を載せるようにしている。そして、圧力容器１
内へ水張りポンプ３により空気抜弁４から空気を抜きな
がら水圧用水を満水にし、加圧ポンプ８により本体圧力
計５を監視しながら規定の水圧試験圧力まで昇圧し耐圧
試験を行なつている。Next, a conventional pressure vessel pressure resistance test method will be described with reference to FIG. Recently, as the size of the plant has increased, the pressure vessel 1 has also become large in capacity. For example, the pressure vessel 1 of a 700MW (7 million KW) class degassing tank for a power plant has a steel plate cylindrical tank with an inner diameter of 3.8m and a total length of 16m. Is formed in. Therefore, its own weight is 60 tons, and when it is full, the weight of water is 154 tons, which makes a total of 214 tons.As a measure to support this huge heavy object, sand 14 is spread on the floor 13 and the iron plate 15 is placed on the ground. The pressure vessel 1 is placed on a temporary pedestal 16 that is prevented from sinking and is specially manufactured to prevent deformation of the pressure vessel 1. And the pressure vessel 1
A water pressure pump 3 is used to remove air from the air bleeding valve 4 to fill the water for hydraulic pressure, and a pressurizing pump 8 monitors the main body pressure gauge 5 to increase the pressure to a prescribed water pressure test pressure to perform a pressure resistance test.
そして、上記のように多量の水を使用して水圧試験を行
なう必要な例としては、原子力発電所（820MW）用湿分
分離器等もあり、この場合は本体重量90トン、水量120
トン合計210トン、また、火力発電所（1000MW）用脱気
タンクの場合、本体重量75トン、水量210トン合計285ト
ンなどがある。このような水圧試験の場合、タンクなど
の容器の容量が著しく大きくなるので、多量の水を必要
とすると共に、この多量の水を収容する容器の重量を支
えるための支持構造が必要となる。このため、第３図に
示すように床面13上の砂14,砂14上に敷いた鉄板15,鉄板
15上の仮設受台16の準備等ぼう大な重量を支持するため
の対策が必要となる。さらに、これらの段取り作業工
数，給排水処理時間及び作業期間も長くなり、特に、原
子力プラント用圧力容器は使用材質により水圧水に純水
を使用することもありそのコスト面でも膨大となる。そ
して、水圧水は防錆のためヒドラジンを溶解しているの
で、試験終了後の排水時にはヒドラジンを中和処理して
排出しないと公害問題を生じるので、大量の水でもあり
この点でも多くの作業工数，費用を要していた。従つ
て、耐圧試験方法については改善が望まれていた。And as an example of the necessity of conducting a water pressure test using a large amount of water as described above, there is a moisture separator for a nuclear power plant (820 MW), etc. In this case, the main body weight is 90 tons and the water amount is 120
Tons total 210 tons, and in the case of degassing tanks for thermal power plants (1000 MW), the main body weight is 75 tons, the water volume 210 tons total 285 tons. In the case of such a water pressure test, the capacity of a container such as a tank is significantly increased, so that a large amount of water is required and a support structure for supporting the weight of the container accommodating this large amount of water is required. Therefore, as shown in FIG. 3, the sand 14 on the floor surface 13, the iron plate 15 laid on the sand 14, the iron plate
It is necessary to take measures to support the large weight, such as the preparation of the temporary pedestal 16 above 15. Further, the number of man-hours required for the setup work, the water supply / drainage treatment time and the working period are prolonged, and in particular, the pressure vessel for a nuclear power plant sometimes uses pure water as the pressurized water depending on the material used, and the cost thereof becomes enormous. And since the pressurized water dissolves hydrazine for rust prevention, it causes a pollution problem unless the hydrazine is neutralized and discharged during drainage after the test. It took man-hours and cost. Therefore, it has been desired to improve the withstand voltage test method.
上記従来技術においては、圧力容器内に充填される水の
代りに圧力容器内に収納し圧力容器内に注入される水の
重量を減少させる水量排除部材を用い、水圧試験時に圧
力容器内に注入される水の量を減少させると共に重量を
低減させることについての配慮がされておらず、水圧試
験のために膨大な量の水が注入された大きな重量物の圧
力容器の支持構造をわざわざ設けたり、水の給排水処理
工数もぼう大であり、これらのための作業期間も長く要
すると共に経済性を低下させている問題点があつた。In the above-mentioned prior art, instead of the water filled in the pressure vessel, a water quantity excluding member that is housed in the pressure vessel and reduces the weight of the water injected into the pressure vessel is used, and the water is injected into the pressure vessel during the water pressure test. There is no consideration to reduce the amount of water that is stored and the weight of the product, and we have purposely provided a support structure for a large heavy-duty pressure vessel into which a huge amount of water has been injected for a water pressure test. However, the number of man-hours for water supply / drainage is enormous, which requires a long working period for them and also reduces the economical efficiency.
本発明は上記の状況に鑑みなされたものであり、耐圧試
験時の水の使用量を著しく減少し圧力容器の重量が低減
でき作業工数を大幅に減少すると共に経済性を著しく向
上できる圧力容器の耐圧試験方法を提供することを目的
としたものである。The present invention has been made in view of the above situation, in which the amount of water used during the pressure resistance test is significantly reduced, the weight of the pressure vessel can be reduced, the number of working steps can be significantly reduced, and the economical efficiency can be significantly improved. It is intended to provide a withstand voltage test method.
本発明の目的は、圧力容器の内部に水を注入し、所定水
圧に加圧して実行される圧力容器の耐圧試験方法におい
て、 前記圧力容器の内部に、中空部への気体の充填によって
外形を保つ複数の気体充填用物体と該気体充填用物体を
相互に連通し且つ入口端を前記圧力容器外部に延設した
連通管とからなる水量排除部材を固定することなく挿入
し、加圧気体源から前記入口端を介して前記気体充填用
物体に気体を充填し、また、水張りポンプによって前記
圧力容器内が満水になるまで水張りし、前記水量排除部
材内の気圧Pgと前記圧力容器内の水圧Phの関係を同程度
に維持しながら、加圧ポンプによって前記圧力容器内の
水圧Phを前記所定水圧まで加圧することにより達成され
る。An object of the present invention is to inject water into a pressure vessel and perform a pressure vessel pressure resistance test method performed by pressurizing to a predetermined water pressure, wherein the inside of the pressure vessel has an outer shape by filling a hollow portion with gas. A pressurized gas source is inserted without fixing a water amount excluding member consisting of a plurality of gas-filling objects to be kept and a communication pipe communicating the gas-filling objects with each other and having an inlet end extended to the outside of the pressure vessel. From the above, the gas filling object is filled with gas through the inlet end, and water filling is performed by a water filling pump until the inside of the pressure vessel is filled with water, and the pressure Pg in the water amount excluding member and the water pressure in the pressure vessel. This is achieved by increasing the water pressure Ph in the pressure vessel to the predetermined water pressure with a pressure pump while maintaining the Ph relationship at the same level.
本発明の目的は、前記圧力容器の内部に、中実で前記耐
圧試験の圧力に耐え得る強度を有し水より比重が軽く、
各々が分離された複数の水量排除部材を固定することな
く挿入し、水張りポンプによって前記圧力容器内が満水
になるまで水張りし、加圧ポンプによって前記圧力容器
内の水圧を前記所定水圧に加圧することにより達成され
る。An object of the present invention is to provide, inside the pressure vessel, a solid having a strength capable of withstanding the pressure of the pressure resistance test and having a lower specific gravity than water,
Each of the separated water amount excluding members is inserted without fixing, water is filled with a water filling pump until the inside of the pressure vessel is full, and the water pressure in the pressure vessel is increased to the predetermined water pressure by a pressure pump. It is achieved by
本発明の一つの構成においては、水圧試験用水の注入前
に、前記圧力容器の内部に前記水量排除部材を固定する
ことなく挿入して水密に封止する。前記水量排除部材が
気体の充填によって外形を保つ複数の気体充填用物体か
らなる場合には、気体加圧源（気体ボンベ７）から前記
水量排除部材の中空部内に気体圧力計（水量排除部材用
圧力計６）による気圧Pgを監視しながら気体を注入する
と共に、水張りポンプから注入された水を加圧ポンプに
より加圧するときに、水圧計（本体圧力計５）によって
計測される圧力容器内の水圧Phと気圧Pgとの関係が第１
図（ロ）に示すように、すなわち同程度の圧力関係を維
持するように調整しながら昇圧させる。In one configuration of the present invention, the water amount excluding member is inserted into the pressure container without being fixed and water-tightly sealed before the water for water pressure test is injected. In the case where the water amount excluding member is composed of a plurality of gas filling objects that keep their outer shape by gas filling, a gas pressure gauge (for the water amount excluding member) is provided in the hollow portion of the water amount excluding member from the gas pressure source (gas cylinder 7). While injecting the gas while monitoring the atmospheric pressure Pg by the pressure gauge 6) and pressurizing the water injected from the water filling pump with the pressure pump, the inside of the pressure vessel measured by the water pressure gauge (main body pressure gauge 5) The relationship between water pressure Ph and pressure Pg is first
As shown in the figure (b), that is, the pressure is increased while adjusting so as to maintain the same pressure relationship.
これによれば、複数の気体充填用物体は水中を自由に浮
遊しながら圧力容器内に分散されるので、圧力容器内で
その内部形状に関わらずに占有率を高めることができ、
使用水量を大幅に低減できる効果がある。特に、圧力容
器内に他の構造物がある場合に、この効果は顕著とな
る。According to this, since a plurality of gas filling objects are dispersed in the pressure vessel while freely floating in water, it is possible to increase the occupancy rate regardless of the internal shape of the pressure vessel,
This has the effect of significantly reducing the amount of water used. In particular, this effect becomes remarkable when there are other structures in the pressure vessel.
また、加圧工程から試験中は前記水量排除部材の内外圧
力差を極めて小さく管理するので、気体充填用物体に高
圧の試験水圧がかかることがなく、耐圧試験を安全に行
える効果がある。Further, since the pressure difference between the inside and the outside of the water amount excluding member is controlled to be extremely small during the test from the pressurizing step, there is an effect that the high pressure test water pressure is not applied to the gas filling object and the pressure resistance test can be safely performed.
さらに、水量排除部材は試験水圧に耐え得るような強度
を必要とせず、気体充填によって膨張し外形を保持する
のに適した柔軟で軽量な材質、たとえば特殊ゴム等を用
いることができる。言い替えれば、一方で水量排除部材
の内外圧力差を極めて小さく維持するために、他方で水
中に浮遊して分散する水量排除部材の適用が可能にな
り、その結果、圧力容器内での占有率を高めて使用水量
を低減できるのである。Further, the water amount excluding member does not need strength enough to endure the test water pressure, and a flexible and lightweight material suitable for expanding by gas filling and holding the outer shape, for example, special rubber can be used. In other words, on the one hand, in order to keep the pressure difference between the inside and outside of the water quantity exclusion member extremely small, it is possible to apply a water quantity exclusion member that floats and disperses in water on the other side, and as a result, the occupation rate in the pressure vessel is reduced. The amount of water used can be increased to reduce the amount of water used.
本発明の他の構成においては、前記複数の水量排除部材
が中実で試験水圧に耐える強度を持ち水より軽く且つ独
立して構成されるので、容器内への挿入や除去が容易に
なる効果がある。さらに、水量排除部材を固定すること
なく水中自由にに浮遊して高密度の分散配置を可能にし
ているので、特に容器内に他の構造物がある場合に使用
水量をより低減できる効果がある。In another configuration of the present invention, since the plurality of water amount excluding members are solid, have strength to withstand test water pressure, are lighter than water, and are independently configured, the effect of facilitating insertion into or removal from the container is achieved. There is. Further, since it floats freely in the water without fixing the water amount excluding member and enables high-density dispersed arrangement, there is an effect that the amount of water used can be further reduced especially when there are other structures in the container. .
以下本発明の圧力容器の耐圧試験方法を実施例を用い従
来と同部品は同符号で示し同部分の構造の説明は省略し
第１図により説明する。第１図（イ）は試験方法を実施
状態の説明図、（ロ）は（イ）の気体充填用物体の中空
部及び圧力容器内における時間の経過に伴う加圧圧力上
昇状態の説明図である。図において、２は水量排除部材
で、内部を中空部24に形成された球状の気体充填用物体
23が複数個のそれぞれの間を連通管25を介し連通し形成
されており、連通管25は圧力容器１の外部に取り出され
気体加圧元弁９を経て気体ボンベ７に接続されている。
そして、気体充填用物体23は、内部気体の圧力調整可能
な特殊ゴムで伸縮自在に、かつ、その重量は同体積の水
の重量よりも著しく軽量に形成されている。６は水量排
除部材用圧力計、11は気体出口弁である。Hereinafter, the pressure vessel pressure resistance test method of the present invention will be described with reference to FIG. 1 by using the embodiment, omitting the description of the structure of the same parts as the conventional parts with the same reference numerals. FIG. 1 (a) is an explanatory view of a state in which the test method is carried out, and (b) is an explanatory view of a state of pressurization pressure increase with time in the hollow portion of the gas filling object and in the pressure vessel of FIG. is there. In the figure, 2 is a water amount excluding member, which is a spherical gas filling object having a hollow portion 24 formed inside.
23 are formed so as to communicate with each other through a communication pipe 25, and the communication pipe 25 is taken out of the pressure vessel 1 and connected to the gas cylinder 7 via the gas pressurizing source valve 9.
The gas filling object 23 is made of a special rubber capable of adjusting the pressure of the internal gas so as to be expandable and contractible, and its weight is significantly lighter than the weight of water of the same volume. 6 is a pressure gauge for the water amount eliminating member, and 11 is a gas outlet valve.
そして、耐圧試験の場合は、第１図に示すようにまず圧
力容器１内に水量排除部材２を装入した後連通管25を圧
力容器１から水封し外部へ取り出し気体加圧元弁９を経
て気体ボンベ７に接続し、気体充填用物体23が所定のふ
くらみになるまで気体加圧元弁９を開き気体ボンベ７の
気体により加圧する。このとき、空気抜弁４より加圧容
器１内の内圧を抜きながら気体充填用物体23の中空部24
が図１（ロ）に示すように、100％水張り時の水圧と同
程度の圧力に加圧されたことを水量排除部材用圧力計６
により確認した後、空気抜弁４より圧力容器１内の空気
を抜きながら水張りポンプ３にて水圧用水を注入する。
空気抜弁４より水圧用水が流出し始めた時点で圧力容器
１内は満水であるので水張りポンプ３を停止し空気抜弁
４を閉にする。水圧試験圧力までの圧力容器１内の昇圧
は、加圧ポンプ８の加圧ポンプ出口弁10を開いて昇圧す
る。この場合に、横軸に時間をとり縦軸に圧力をとつて
示した第１図（ロ）に示すように、点線で示す気体充填
用物体23の内部圧力PG kg/cm2が実線で示す圧力容器１
の水圧水圧力PH kg/cm2に対し図示の如くやや高い状態
で、水量排除部材用圧力計６及び本体圧力計５を監視し
ながら気体加圧元弁9,加圧ポンプ出口弁10の開度を調整
し図１（ロ）に示すように、気圧Pgと水圧Phの関係を同
程度に維持しながら、耐圧試験圧力まで昇圧させこの圧
力状態を保持する。In the case of the pressure resistance test, as shown in FIG. 1, first, the water amount excluding member 2 is loaded into the pressure vessel 1 and then the communication pipe 25 is water-sealed from the pressure vessel 1 and taken out to the outside. Then, the gas pressurizing valve 9 is opened and the gas in the gas cylinder 7 is pressurized until the gas filling object 23 has a predetermined bulge. At this time, the hollow portion 24 of the gas filling object 23 is released while releasing the internal pressure in the pressurized container 1 from the air vent valve 4.
As shown in Fig. 1 (b), the pressure gauge for the water quantity excluding member 6 indicates that the water pressure is about the same as the water pressure at 100% water filling.
After the confirmation, the water for water pressure is injected by the water filling pump 3 while bleeding the air in the pressure vessel 1 from the air bleeding valve 4.
Since the pressure vessel 1 is full when the water for hydraulic pressure starts to flow out from the air vent valve 4, the water filling pump 3 is stopped and the air vent valve 4 is closed. The pressure inside the pressure vessel 1 up to the hydraulic test pressure is increased by opening the pressure pump outlet valve 10 of the pressure pump 8. In this case, as shown in Figure 1 showing connexion with the pressure on the vertical axis the horizontal axis represents time (b), the internal pressure P G kg / cm 2 gas filling body 23 shown by the dotted line is a solid line Pressure vessel 1 shown
Of the gas pressurizing source valve 9 and the pressurizing pump outlet valve 10 while monitoring the pressure gauge 6 for the water amount eliminating member and the main body pressure gauge 5 at a slightly higher pressure than the hydraulic pressure water pressure P H kg / cm 2 of FIG. By adjusting the opening degree, as shown in FIG. 1B, while maintaining the relationship between the atmospheric pressure Pg and the water pressure Ph at the same level, the pressure test pressure is increased to maintain this pressure state.
規定の耐圧試験圧力を１時間保持後、目視にて漏洩水の
有無を確認する。気体充填用物体23内圧の降圧は、気体
出口弁11を開いて内部圧力PGを降圧させるが、水量排除
部材２の体積と圧力容器１内の水圧水圧力PHとの関係
で、圧力タンク１の内圧が負圧になる場合は、空気抜弁
４で、また、正圧の場合は胴体水抜弁12により内部圧力
が0kg/cm2になるように調整して行なう。上記のよう
に、圧力容器１内に水量排除部材２を挿入し水圧水を注
入するので水量排除部材２の体積分だけ注入水の量は減
少されるが、圧力容器１内は100％水張り状態と同じ状
態になる。この状態にて加圧ポンプ８にて加圧すること
により、圧力容器１内部及び水量排除部材２の外表面に
は同圧力が加わることになるが、水量排除部材２は耐圧
構造物のために体積変化はない。また、もし水量排除部
材２の外表面が圧力容器１の内面や溶接線に接触して
も、その接触面は圧力水が浸透しているので正規の水圧
力を受けたことになる。上記のように水圧水量を減少さ
せるために、圧力容器１内に水量排除部材２を置いて行
なう耐圧試験方法は、従来行なつている圧力容器１内に
100％水張りをして耐圧試験を行なう方法と全く変るこ
となく充分に同様の品質保証が得られることは明らかで
ある。After maintaining the specified pressure resistance test pressure for 1 hour, visually check for the presence of leaked water. When the internal pressure of the gas filling object 23 is reduced, the internal pressure P G is reduced by opening the gas outlet valve 11. However, due to the relationship between the volume of the water amount excluding member 2 and the hydraulic water pressure P H in the pressure vessel 1, the pressure tank When the internal pressure of 1 becomes negative, it is adjusted by the air vent valve 4, and when it is positive, it is adjusted by the body drain valve 12 so that the internal pressure becomes 0 kg / cm 2 . As described above, since the water amount excluding member 2 is inserted into the pressure vessel 1 and the pressurized water is injected, the amount of the injected water is reduced by the volume of the water amount excluding member 2, but the pressure vessel 1 is completely filled with water. It will be in the same state as. By pressurizing with the pressurizing pump 8 in this state, the same pressure is applied to the inside of the pressure vessel 1 and the outer surface of the water amount excluding member 2, but the water amount excluding member 2 has a volume due to the pressure resistant structure. There is no change. Further, even if the outer surface of the water amount excluding member 2 comes into contact with the inner surface of the pressure vessel 1 and the welding line, the contact surface is under the normal water pressure because the pressure water has permeated. As described above, in order to reduce the amount of pressurized water, the pressure resistance test method performed by placing the water amount exclusion member 2 in the pressure vessel 1 is performed in the conventional pressure vessel 1.
It is clear that the same quality assurance can be obtained without any difference from the method of performing a pressure test with 100% water filling.
このように本実施例の圧力容器の耐圧試験方法において
は圧力容器内部に水量排除部材を装入し加圧用の水圧水
注入量を減少できるようにして水圧試験を行なうので、
水圧用水が大幅に減少できると共にヒドラジンの使用量
も減少でき、水張り，排水の作業工数及び時間の短縮並
びに仮設受台，床面補強の段取り作業の簡略化による作
業工数及び費用を著しく低減が可能となり、また、純水
使用の場合はその使用量を節減できる。従つて、耐圧試
験時の水の使用量を著しく減少し圧力容器の重量が低減
でき作業工数を大幅に低減できる共に経済性を著しく向
上できる。As described above, in the pressure vessel pressure resistance test method of the present embodiment, the water pressure test is performed by charging the water amount excluding member into the pressure vessel so that the injection amount of the pressurized water for pressurization can be reduced.
The hydraulic water can be greatly reduced and the amount of hydrazine used can also be reduced, and the work man-hours and time for water filling and drainage can be shortened, and the work man-hours and costs can be significantly reduced by simplifying the setup work for temporary pedestals and floor reinforcement. Also, when pure water is used, the amount used can be reduced. Therefore, the amount of water used during the pressure resistance test can be remarkably reduced, the weight of the pressure vessel can be reduced, the number of working steps can be remarkably reduced, and the economical efficiency can be remarkably improved.
第２図は他の実施例を示し、上記実施例と異なるところ
は、上記実施例は水量排除部材２が、内部に中空部24を
有する複数個の気体充填用物体23の相互間を連通管25に
より連通し外部からの気体により耐圧試験圧力となるよ
うに保持し水の一部と代替えするように構成されてい
る。これに対し本実施例は、水量排除部材２を圧力容器
１の耐圧試験時の内部圧力により外周側から圧縮される
圧力以上の強度を有すると共に内部に空洞を有しなく比
重が小さい複数の球形の水排除物体17により構成してい
る点である。そして、水圧試験時には第２図に示すよう
に個々の水排除物体17を圧力容器１内に挿入し水封し、
上記実施例と同様に水圧水を水張りポンプ３により注水
し加圧ポンプ８により耐圧試験圧力に内部を加圧する。
本実施例も、圧力容器１内に注入される水圧用水量を減
少し得て上記実施例と同様の作用効果を有する。FIG. 2 shows another embodiment. The difference from the above embodiment is that in the above embodiment, the water amount excluding member 2 connects a plurality of gas filling objects 23 having a hollow portion 24 therein with one another. It is configured to communicate with each other by means of 25 and to maintain the pressure resistance test pressure by the gas from the outside so as to replace a part of water. On the other hand, in the present embodiment, the water amount excluding member 2 has a strength equal to or higher than the pressure compressed from the outer peripheral side by the internal pressure during the pressure resistance test of the pressure vessel 1, has no cavity inside, and has a plurality of spherical shapes with a small specific gravity. This is the point that it is configured by the water-excluding object 17 of. Then, at the time of the water pressure test, as shown in FIG. 2, each water exclusion body 17 is inserted into the pressure vessel 1 and sealed with water,
Similarly to the above-mentioned embodiment, hydraulic water is injected by the water filling pump 3 and the inside is pressurized by the pressurizing pump 8 to the pressure resistance test pressure.
This embodiment can also reduce the amount of hydraulic water to be injected into the pressure vessel 1 and has the same effect as the above embodiment.
以上記述した如く本発明の圧力容器の耐圧試験方法によ
れば、耐圧試験時の水の使用量を著しく減少し圧力容器
の重量が低減でき作業工数を大幅に減少すると共に経済
性を著しく向上できる効果を有するものである。As described above, according to the pressure vessel pressure resistance test method of the present invention, the amount of water used during the pressure resistance test can be remarkably reduced, the weight of the pressure vessel can be reduced, the number of work steps can be significantly reduced, and the economical efficiency can be remarkably improved. It has an effect.
特に、水量排除部材を複数の気体充填物体を連通して形
成する場合には、圧力容器内部に構造物がある場合にも
前記水量排除部材の占有率を高めて、使用水をさらに低
減できる効果がある。また、水量排除部材に試験用の高
水圧が加わることを回避できるので、耐圧試験を安全に
行える効果がある。Particularly, when the water amount excluding member is formed to communicate with a plurality of gas-filled objects, the occupancy rate of the water amount excluding member is increased even when there is a structure inside the pressure vessel, and the amount of water used can be further reduced. There is. Further, since it is possible to avoid applying a high water pressure for testing to the water amount excluding member, it is possible to safely perform the pressure resistance test.
また、本発明の別の構成によれば、前記複数の水量排除
部材が中実で試験水圧に耐える強度を持ち水より軽く且
つ独立して構成されるので、容器内への挿入や除去が容
易になる効果がある。さらに、水量排除部材を固定する
ことなく水中に浮遊して高密度の分散配置をしているの
で、特に容器内に他の構造物がある場合に使用水量をよ
り低減できる効果がある。Further, according to another configuration of the present invention, since the plurality of water amount excluding members are solid, have strength to withstand test water pressure, are lighter than water, and are independently configured, insertion and removal into a container are easy. Is effective. Further, since the water amount excluding member is not fixed and is floated in the water and is dispersed and arranged at a high density, there is an effect that the amount of water used can be further reduced especially when there are other structures in the container.
第１図は（イ）は本発明の圧力容器の耐圧試験方法の実
施状態の説明図、（ロ）は（イ）の気体充填用物体の中
空部及び圧力容器内における時間の経過に伴う加圧圧力
上昇状態の説明図、第２図は本発明の圧力容器の耐圧試
験方法の他の実施状態の説明図、第３図（イ）は従来の
圧力容器の耐圧試験方法実施状態説明図、（ロ）は
（イ）のＡ−Ａ矢視断面図、第４図は通常の火力発電設
備用脱気器説明図である。 １……圧力容器、２……水量排除部材、７……気体ボン
ベ、８……加圧ポンプ、17……水排除物体、23……気体
充填用物体、24……中空部、25……連通管。FIG. 1 (a) is an explanatory view of an implementation state of a pressure container pressure resistance test method according to the present invention, and (b) is a diagram showing (a) addition of a gas filling object in a hollow portion and in a pressure container as time elapses. FIG. 2 is an explanatory view of the pressure and pressure rising state, FIG. 2 is an explanatory view of another embodiment of the pressure vessel pressure resistance test method of the present invention, and FIG. 3 (a) is a conventional pressure vessel pressure resistance test method implementation state illustration (B) is a sectional view taken along the line A-A of (A), and FIG. 4 is an explanatory view of a deaerator for a normal thermal power generation facility. 1 ... Pressure container, 2 ... Water amount excluding member, 7 ... Gas cylinder, 8 ... Pressurizing pump, 17 ... Water excluding object, 23 ... Gas filling object, 24 ... Hollow part, 25 ... Communication pipe.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 渡辺 勝好 茨城県日立市幸町３丁目１番１号 株式会 社日立製作所日立工場内 (72)発明者 堀江 徹 茨城県日立市会瀬町２丁目９番１号 日立 サービスエンジニアリング株式会社内 (56)参考文献 特開 昭51−49773（ＪＰ，Ａ) 実開 昭55−49245（ＪＰ，Ｕ) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Katsuyoshi Watanabe 3-1-1, Saiwaicho, Hitachi-shi, Ibaraki Hitachi Ltd. Hitachi factory (72) Inventor Toru Horie 2-chome, Aise-cho, Hitachi-shi, Ibaraki No. 9-1 within Hitachi Service Engineering Co., Ltd. (56) References Japanese Unexamined Patent Publication No. 51-49773 (JP, A) Actual exploitation 55-49245 (JP, U)
Claims (2)
加圧して実行される圧力容器の耐圧試験方法において、 前記圧力容器の内部に、中空部への気体の充填によって
外形を保つ複数の気体充填用物体と該気体充填用物体を
相互に連通し且つ入口端を前記圧力容器外部に延設した
連通管とからなる水量排除部材を固定することなく挿入
し、加圧気体源から前記入口端を介して前記気体充填用
物体に気体を充填し、また、水張りポンプによって前記
圧力容器内が満水になるまで水張りし、前記水量排除部
材内の気圧Pgと前記圧力容器内の水圧Phの関係を同程度
に維持しながら、加圧ポンプによって前記圧力容器内の
水圧Phを前記所定水圧まで加圧することを特徴とする圧
力容器の耐圧試験方法。1. A pressure vessel pressure resistance test method executed by injecting water into a pressure vessel and pressurizing it to a predetermined water pressure, wherein the inside of the pressure vessel is maintained in shape by filling gas into a hollow portion. From a pressurized gas source, a water amount excluding member consisting of a plurality of gas filling objects and a communication pipe communicating the gas filling objects with each other and having an inlet end extended to the outside of the pressure vessel is inserted without being fixed. The gas filling object is filled with gas via the inlet end, and water filling is performed by a water filling pump until the pressure vessel is filled with water, and the air pressure Pg in the water amount excluding member and the water pressure Ph in the pressure vessel are set. The pressure resistance test method for a pressure vessel, wherein the water pressure Ph in the pressure vessel is increased to the predetermined water pressure by a pressure pump while maintaining the above relationship to the same degree.
水圧に加圧して実行される圧力容器の耐圧試験方法にお
いて、 前記圧力容器の内部に、中実で前記耐圧試験の圧力に耐
え得る強度を有し、水より比重が軽く各々が分離された
複数の水量排除部材を固定することなく挿入し、水張り
ポンプによって前記圧力容器内が満水になるまで水張り
し、加圧ポンプによって前記圧力容器内の水圧を前記所
定水圧に加圧することを特徴とする圧力容器の耐圧試験
方法。2. A pressure vessel pressure test method for injecting water into a pressure vessel and pressurizing the water to a predetermined water pressure, wherein the pressure vessel has a solid pressure test pressure inside the pressure vessel. It has a strength to withstand, and has a specific gravity that is lighter than water, and is inserted without fixing a plurality of separated water quantity separating members, and water is filled with a water filling pump until the inside of the pressure vessel is full, and a pressure pump is used. A pressure vessel pressure resistance test method, comprising increasing the water pressure in the pressure vessel to the predetermined water pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62131415A JPH07119674B2 (en) | 1987-05-29 | 1987-05-29 | Pressure vessel pressure resistance test method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62131415A JPH07119674B2 (en) | 1987-05-29 | 1987-05-29 | Pressure vessel pressure resistance test method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63298023A JPS63298023A (en) | 1988-12-05 |
| JPH07119674B2 true JPH07119674B2 (en) | 1995-12-20 |
Family
ID=15057432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62131415A Expired - Lifetime JPH07119674B2 (en) | 1987-05-29 | 1987-05-29 | Pressure vessel pressure resistance test method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07119674B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102288489A (en) * | 2011-05-10 | 2011-12-21 | 衡阳合力工业车辆有限公司 | Hydraulic testing device for part of explosion-proof electric appliance |
| CN103712860A (en) * | 2013-12-09 | 2014-04-09 | 河南启德隆实业有限公司 | Hydraulic burst testing machine for micro-channel concurrent flow aluminum pipes |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0495840A (en) * | 1990-08-13 | 1992-03-27 | Kawasaki Heavy Ind Ltd | Method and apparatus for testing strength of container |
| CN105403462A (en) * | 2015-12-20 | 2016-03-16 | 西安航天动力机械厂 | Filling-type method for hydrostatic test of engine metal casing body |
| CN107870129A (en) * | 2017-12-14 | 2018-04-03 | 南京新核复合材料有限公司 | Heavy-caliber fiber reinforced plastic pipe jacket type water test unit |
| CN108414363A (en) * | 2018-04-24 | 2018-08-17 | 华南理工大学 | A kind of experimental rig for simulating hydraulic pressure in water-conveyance tunnel height |
| CN110542611A (en) * | 2018-05-29 | 2019-12-06 | 兰州兰石重型装备股份有限公司 | Equipment pressure test adapter tube and pressure test method |
| CN114544365A (en) * | 2022-02-15 | 2022-05-27 | 中国华能集团清洁能源技术研究院有限公司 | Hydraulic pressure detection method for pressure container |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5149773A (en) * | 1974-10-25 | 1976-04-30 | Kubota Ltd | TAIATSUSHIKENHOHO |
| JPS5549245U (en) * | 1978-09-29 | 1980-03-31 |
-
1987
- 1987-05-29 JP JP62131415A patent/JPH07119674B2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102288489A (en) * | 2011-05-10 | 2011-12-21 | 衡阳合力工业车辆有限公司 | Hydraulic testing device for part of explosion-proof electric appliance |
| CN103712860A (en) * | 2013-12-09 | 2014-04-09 | 河南启德隆实业有限公司 | Hydraulic burst testing machine for micro-channel concurrent flow aluminum pipes |
| CN103712860B (en) * | 2013-12-09 | 2016-04-13 | 河南启德隆实业有限公司 | Micro-channel parallel flow aluminum pipe hydraulic bursting test machine |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63298023A (en) | 1988-12-05 |
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